306
FNCA52 TJSJ 250748
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
348 AM AST THU DEC 25 2025
DISCUSSION
FREQUENT SHOWERS ASSOCIATED WITH THE PASSAGE OF FRONTAL BOUNDARY
OVER THE ISLANDS WILL PREVAIL. ADDITIONAL SHOWERS ARE ALSO
POSSIBLE THIS AFTERNOON OVER INTERIOR TO WSW PUERTO RICO. NE WINDS
WILL BE AT 15 TO 20 MPH WITH HIGHER GUSTS ACROSS COASTAL SECTORS.
THE FIRE DANGER WILL REMAIN LOW TODAY. CONTINUE TO MONITOR THE
FORECAST FOR ANY UPDATES.
PRZ014-260800-
SOUTHEAST COASTAL PLAINS-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 40
TEMP (24H TREND) 86 (+1) 66 (-2) 85
RH % (24H TREND) 44 (-11) 91 (-6) 48
WIND 20FT/EARLY(MPH) N 14 G20 NE 12 NE 11
WIND 20FT/LATE(MPH) N 14 G20 NE 12 NE 11
MIXING HGT(FT-AGL/MSL)5120 4920
TRANSPORT WND (MPH) N 15 NE 8
VENT RATE (KT-FT) 66560 34440
DISPERSION 5 5
DSI 6 3 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-260800-
SOUTHERN HILLS-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 20
TEMP (24H TREND) 82 (+2) 62 (-4) 81
RH % (24H TREND) 58 (-11) 94 (-4) 55
WIND 20FT/EARLY(MPH) N 13 N 11 NE 10
WIND 20FT/LATE(MPH) N 13 N 11 NE 10
MIXING HGT(FT-AGL/MSL)5270 4930
TRANSPORT WND (MPH) N 16 NE 8
VENT RATE (KT-FT) 73780 34510
DISPERSION 5 5
DSI 5 2 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-260800-
NORTH COASTAL PLAINS-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 20
TEMP (24H TREND) 83 (0) 68 (-1) 82
RH % (24H TREND) 60 (-10) 91 (-8) 59
WIND 20FT/EARLY(MPH) NE 14 G17 NE 13 NE 12
WIND 20FT/LATE(MPH) NE 14 G17 NE 13 NE 12
MIXING HGT(FT-AGL/MSL)5170 4770
TRANSPORT WND (MPH) N 15 NE 10
VENT RATE (KT-FT) 67210 42930
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-260800-
NORTHERN HILLS-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 20
TEMP (24H TREND) 81 (-1) 65 (-2) 80
RH % (24H TREND) 62 (-8) 93 (-7) 60
WIND 20FT/EARLY(MPH) NE 14 NE 12 NE 11
WIND 20FT/LATE(MPH) NE 14 NE 12 NE 11
MIXING HGT(FT-AGL/MSL)5120 5110
TRANSPORT WND (MPH) N 16 NE 10
VENT RATE (KT-FT) 71680 45990
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-260800-
WEST COAST-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 10
TEMP (24H TREND) 85 (-1) 65 (-2) 84
RH % (24H TREND) 55 (-11) 93 (-6) 56
WIND 20FT/EARLY(MPH) NE 17 G19 NE 14 E 13
WIND 20FT/LATE(MPH) NE 17 G19 NE 14 E 13
MIXING HGT(FT-AGL/MSL)5830 4800
TRANSPORT WND (MPH) NE 17 NE 8
VENT RATE (KT-FT) 87450 33600
DISPERSION 5 5
DSI 6 5 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-260800-
EASTERN INTERIOR-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 20
TEMP (24H TREND) 82 (+1) 64 (-3) 82
RH % (24H TREND) 63 (-9) 94 (-6) 59
WIND 20FT/EARLY(MPH) N 12 N 11 NE 10
WIND 20FT/LATE(MPH) N 12 N 11 NE 10
MIXING HGT(FT-AGL/MSL)4500 4660
TRANSPORT WND (MPH) N 16 NE 10
VENT RATE (KT-FT) 63000 41940
DISPERSION 5 5
DSI 6 2 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-260800-
LUQUILLO MOUNTAIN RANGE-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 20
TEMP (24H TREND) 77 (+1) 62 (-3) 78
RH % (24H TREND) 67 (-9) 98 (-2) 62
WIND 20FT/EARLY(MPH) N 10 N 8 NE 8
WIND 20FT/LATE(MPH) N 10 N 8 NE 8
MIXING HGT(FT-AGL/MSL)4480 4410
TRANSPORT WND (MPH) N 15 NE 9
VENT RATE (KT-FT) 58240 35280
DISPERSION 5 5
DSI 6 3 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-260800-
CENTRAL MOUNTAIN RANGE-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 10
TEMP (24H TREND) 79 (+1) 61 (-3) 79
RH % (24H TREND) 63 (-8) 97 (-2) 59
WIND 20FT/EARLY(MPH) NE 14 NE 12 NE 11
WIND 20FT/LATE(MPH) NE 14 NE 12 NE 11
MIXING HGT(FT-AGL/MSL)5220 5280
TRANSPORT WND (MPH) N 16 NE 9
VENT RATE (KT-FT) 73080 42240
DISPERSION 5 5
DSI 5 2 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-260800-
CAYEY MOUNTAIN RANGE-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 40
TEMP (24H TREND) 77 (0) 62 (-3) 77
RH % (24H TREND) 67 (-7) 97 (-3) 62
WIND 20FT/EARLY(MPH) N 11 N 9 NE 9
WIND 20FT/LATE(MPH) N 11 N 9 NE 9
MIXING HGT(FT-AGL/MSL)4390 4480
TRANSPORT WND (MPH) N 17 NE 10
VENT RATE (KT-FT) 65850 40320
DISPERSION 5 5
DSI 6 2 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-260800-
VIEQUES-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 20
TEMP (24H TREND) 84 (-1) 68 (-2) 84
RH % (24H TREND) 58 (-4) 90 (-10) 53
WIND 20FT/EARLY(MPH) N 16 G20 NE 16 G20 NE 11
WIND 20FT/LATE(MPH) N 16 G20 NE 16 G20 NE 11
MIXING HGT(FT-AGL/MSL)4230 4090
TRANSPORT WND (MPH) N 18 NE 14
VENT RATE (KT-FT) 67680 49080
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-260800-
CULEBRA-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 20
TEMP (24H TREND) 84 (-1) 69 (-2) 84
RH % (24H TREND) 56 (-8) 89 (-10) 55
WIND 20FT/EARLY(MPH) N 14 G18 NE 14 G19 NE 11
WIND 20FT/LATE(MPH) N 14 G18 NE 14 G19 NE 11
MIXING HGT(FT-AGL/MSL)4260 3960
TRANSPORT WND (MPH) N 17 NE 14
VENT RATE (KT-FT) 63900 47520
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-260800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 20
TEMP (24H TREND) 87 (+1) 65 (-3) 84
RH % (24H TREND) 41 (-12) 91 (-5) 48
WIND 20FT/EARLY(MPH) N 20 G24 NE 18 G22 SE 13
WIND 20FT/LATE(MPH) N 20 G24 NE 18 G22 SE 13
MIXING HGT(FT-AGL/MSL)6160 5090
TRANSPORT WND (MPH) N 14 E 6
VENT RATE (KT-FT) 73920 25450
DISPERSION 5 5
DSI 5 3 4
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-260800-
SAINT THOMAS AND SAINT JOHN-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 20
TEMP (24H TREND) 83 (-2) 68 (-2) 82
RH % (24H TREND) 61 (-3) 88 (-11) 58
WIND 20FT/EARLY(MPH) N 14 G18 NE 16 G19 NE 11
WIND 20FT/LATE(MPH) N 14 G18 NE 16 G19 NE 11
MIXING HGT(FT-AGL/MSL)4560 4060
TRANSPORT WND (MPH) N 16 NE 13
VENT RATE (KT-FT) 63840 44660
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-260800-
ST CROIX-
348 AM AST THU DEC 25 2025
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 20
TEMP (24H TREND) 83 (-2) 68 (-3) 83
RH % (24H TREND) 63 (-1) 90 (-9) 56
WIND 20FT/EARLY(MPH) NE 14 G18 NE 14 G18 NE 11
WIND 20FT/LATE(MPH) NE 14 G18 NE 14 G18 NE 11
MIXING HGT(FT-AGL/MSL)4120 5060
TRANSPORT WND (MPH) NE 18 NE 12
VENT RATE (KT-FT) 65920 50600
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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